Added FX Materials
* Added FX Shader Materials * Added Projector Actor
This commit is contained in:
n00b
196
rcbasic_runtime/ProjectiveTextures.cpp
Executable file
196
rcbasic_runtime/ProjectiveTextures.cpp
Executable file
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#include "ProjectiveTextures.h"
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#include <string>
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/* CONSTRUCTOR */
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CProjectiveTextures::CProjectiveTextures(irr::IrrlichtDevice* dev, irr::scene::ISceneNode* parent, irr::scene::ISceneManager* mgr, irr::s32 id,
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const irr::core::vector3df& position, const irr::core::vector3df& lookat)
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: irr::scene::ISceneNode(parent, mgr, id, position)
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{
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pDevice = dev;
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pVideo = pDevice->getVideoDriver();
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pScene = pDevice->getSceneManager();
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pGUI = pDevice->getGUIEnvironment();
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pGPU = pVideo->getGPUProgrammingServices();
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pCollision = pScene->getSceneCollisionManager();
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pLog = pDevice->getLogger();
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// set default projection
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Fovy = irr::core::PI / 2.5f; // Field of view, in radians.
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Target = lookat;
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recalculateProjectionMatrix();
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recalculateViewArea();
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std::string projector_vert =
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"!!ARBvp1.0 \n"
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"# cgc version 2.1.0016, build date Nov 20 2008 \n"
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"# command line args: -oglsl -bestprecision -O3 -profile arbvp1 \n"
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"# source file: projector.vert \n"
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"#vendor NVIDIA Corporation \n"
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"#version 2.1.0.16 \n"
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"#profile arbvp1 \n"
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"#program main \n"
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"#semantic gl_ModelViewProjectionMatrixTranspose : state.matrix.mvp \n"
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"#semantic TexGenMat \n"
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"#var float4 gl_TexCoord[0] : $vout.TEX0 : TEX0 : -1 : 1 \n"
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"#var float4 gl_TexCoord[1] : : : -1 : 0 \n"
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"#var float4 gl_TexCoord[2] : : : -1 : 0 \n"
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"#var float4 gl_TexCoord[3] : : : -1 : 0 \n"
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"#var float4 gl_TexCoord[4] : : : -1 : 0 \n"
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"#var float4 gl_TexCoord[5] : : : -1 : 0 \n"
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"#var float4 gl_TexCoord[6] : : : -1 : 0 \n"
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"#var float4 gl_TexCoord[7] : : : -1 : 0 \n"
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"#var float4 gl_Vertex : $vin.POSITION : POSITION : -1 : 1 \n"
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"#var float4 gl_Position : $vout.POSITION : HPOS : -1 : 1 \n"
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"#var float4x4 gl_ModelViewProjectionMatrixTranspose : state.matrix.mvp : c[1], 4 : -1 : 1 \n"
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"#var float4x4 TexGenMat : : c[5], 4 : -1 : 1 \n"
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"PARAM c[9] = { program.local[0], \n"
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" state.matrix.mvp, \n"
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" program.local[5..8] }; \n"
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"TEMP R0; \n"
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"MUL R0, vertex.position.y, c[6]; \n"
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"MAD R0, vertex.position.x, c[5], R0; \n"
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"MAD R0, vertex.position.z, c[7], R0; \n"
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"MAD result.texcoord[0], vertex.position.w, c[8], R0; \n"
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"DP4 result.position.w, vertex.position, c[4]; \n"
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"DP4 result.position.z, vertex.position, c[3]; \n"
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"DP4 result.position.y, vertex.position, c[2]; \n"
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"DP4 result.position.x, vertex.position, c[1]; \n"
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"END \n"
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"# 8 instructions, 1 R-regs \n"
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;
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std::string projector_frag =
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"!!ARBfp1.0 \n"
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"OPTION ARB_precision_hint_nicest; \n"
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"# cgc version 2.1.0016, build date Nov 20 2008 \n"
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"# command line args: -oglsl -bestprecision -O3 -profile arbfp1 \n"
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"# source file: projector.frag \n"
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"#vendor NVIDIA Corporation \n"
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"#version 2.1.0.16 \n"
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"#profile arbfp1 \n"
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"#program main \n"
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"#semantic projMap \n"
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"#var float4 gl_TexCoord[0] : $vin.TEX0 : TEX0 : -1 : 1 \n"
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"#var float4 gl_TexCoord[1] : : : -1 : 0 \n"
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"#var float4 gl_TexCoord[2] : : : -1 : 0 \n"
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"#var float4 gl_TexCoord[3] : : : -1 : 0 \n"
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"#var float4 gl_TexCoord[4] : : : -1 : 0 \n"
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"#var float4 gl_TexCoord[5] : : : -1 : 0 \n"
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"#var float4 gl_TexCoord[6] : : : -1 : 0 \n"
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"#var float4 gl_TexCoord[7] : : : -1 : 0 \n"
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"#var float4 gl_FragColor : $vout.COLOR : COL : -1 : 1 \n"
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"#var sampler2D projMap : : texunit 0 : -1 : 1 \n"
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"#const c[0] = 0 \n"
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"PARAM c[1] = { { 0 } }; \n"
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"TEMP R0; \n"
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"TXP R0, fragment.texcoord[0], texture[0], 2D; \n"
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"CMP result.color, -fragment.texcoord[0].w, R0, c[0].x; \n"
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"END \n"
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"# 2 instructions, 1 R-regs \n"
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;
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// Load the shaders.
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projTex = pGPU->addShaderMaterial(projector_vert.c_str(),
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projector_frag.c_str(),
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this,irr::video::EMT_TRANSPARENT_ADD_COLOR,0);
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}
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/* DESTRUCTOR */
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CProjectiveTextures::~CProjectiveTextures()
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{
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// Remove the texture used.
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pVideo->removeTexture(texture);
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}
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//! sets the look at target of the projector
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void CProjectiveTextures::setTarget(const irr::core::vector3df& pos)
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{
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Target = pos;
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const irr::core::vector3df toTarget = Target - getAbsolutePosition();
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}
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//! Gets the current look at target of the projector
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const irr::core::vector3df& CProjectiveTextures::getTarget() const
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{
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return Target;
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}
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void CProjectiveTextures::setFOV(irr::f32 f)
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{
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Fovy = f;
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recalculateProjectionMatrix();
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}
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irr::f32 CProjectiveTextures::getFOV()
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{
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return Fovy;
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}
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//! returns the axis aligned bounding box of this node
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const irr::core::aabbox3d<irr::f32>& CProjectiveTextures::getBoundingBox() const
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{
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return ViewArea.getBoundingBox();
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}
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/* UPDATE */
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void CProjectiveTextures::render()
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{
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irr::core::vector3df pos = getAbsolutePosition();
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irr::core::vector3df tgtv = Target - pos;
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tgtv.normalize();
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// if upvector and vector to the target are the same, we have a
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// problem. so solve this problem:
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irr::core::vector3df up(0.0f,0.0f,1.0f);
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ViewArea.getTransform(irr::video::ETS_VIEW).buildCameraLookAtMatrixLH(pos,Target,up);
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recalculateViewArea();
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for(irr::u32 i=0; i<nodeArray.size(); ++i)
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{
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projMat.MaterialType = (irr::video::E_MATERIAL_TYPE)projTex;
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projMat.TextureLayer[0].Texture = texture;
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// projMat.TextureLayer[0].TextureWrap = ETC_CLAMP_TO_BORDER;
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pVideo->setTransform(irr::video::ETS_WORLD,nodeArray[i]->getAbsoluteTransformation());
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pVideo->setMaterial(projMat);
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for(irr::u32 j=0; j<nodeArray[i]->getMaterialCount(); ++j)
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pVideo->drawMeshBuffer(nodeArray[i]->getMesh()->getMeshBuffer(j));
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}
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}
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void CProjectiveTextures::recalculateProjectionMatrix()
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{
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ViewArea.getTransform(irr::video::ETS_PROJECTION ).buildProjectionMatrixPerspectiveFovLH(Fovy,1.0f,1.0f,3000.0f);
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}
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void CProjectiveTextures::recalculateViewArea()
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{
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ViewArea.cameraPosition = getAbsolutePosition();
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irr::core::matrix4 m(irr::core::matrix4::EM4CONST_NOTHING);
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m.setbyproduct_nocheck(ViewArea.getTransform(irr::video::ETS_PROJECTION),ViewArea.getTransform(irr::video::ETS_VIEW));
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ViewArea.setFrom(m, true);
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}
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void CProjectiveTextures::OnSetConstants(irr::video::IMaterialRendererServices* services,irr::s32 userData)
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{
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if(userData == 0)
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{
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irr::core::matrix4 bias;
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bias.makeIdentity();
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bias.setTranslation(irr::core::vector3df(0.5f,0.5f,0));
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bias.setScale(irr::core::vector3df(0.5f,-0.5f,1.0f));
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irr::core::matrix4 worldViewProj;
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worldViewProj = bias * ViewArea.getTransform(irr::video::ETS_PROJECTION);
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worldViewProj *= ViewArea.getTransform(irr::video::ETS_VIEW);
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worldViewProj *= pVideo->getTransform(irr::video::ETS_WORLD);
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services->setVertexShaderConstant(reinterpret_cast<const irr::f32*>(worldViewProj.pointer()),5,4);
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}
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}
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