Irrlicht Engine

Code: Select all

 
int main()
{
    ..............
    SIrrlichtCreationParameters* s_IrrlichtCreationParameters = new SIrrlichtCreationParameters;
    s_IrrlichtCreationParameters->DeviceType = EIDT_BEST;
    s_IrrlichtCreationParameters->DriverType = EDT_OPENGL;
    s_IrrlichtCreationParameters->WindowSize = dimension2d<u32>(1280, 720);
    s_IrrlichtCreationParameters->Bits = 32;
    s_IrrlichtCreationParameters->ZBufferBits = 16;
    s_IrrlichtCreationParameters->Fullscreen = false;
    s_IrrlichtCreationParameters->Stencilbuffer = false;
    s_IrrlichtCreationParameters->Vsync = false;
    s_IrrlichtCreationParameters->AntiAlias = 8;
    s_IrrlichtCreationParameters->WithAlphaChannel = false;
    s_IrrlichtCreationParameters->Doublebuffer = true;
    s_IrrlichtCreationParameters->IgnoreInput = false;
    s_IrrlichtCreationParameters->Stereobuffer = false;
    s_IrrlichtCreationParameters->HighPrecisionFPU = false;
 
    IrrlichtDevice* device = createDeviceEx(*s_IrrlichtCreationParameters);
    delete s_IrrlichtCreationParameters;
 
    ...............
 
    smgr->getParameters()->setAttribute(scene::ALLOW_ZWRITE_ON_TRANSPARENT, true); //Scene manager
 
    // Creating light shaders
    MyShaderCallBack* mc = new MyShaderCallBack();
    s32 chunkLightMaterialType = driver->getGPUProgrammingServices()->addHighLevelShaderMaterialFromFiles(
                                "Shaders/light.vert", "vertexMain", video::EVST_VS_1_1,
                                "Shaders/light.frag", "pixelMain", video::EPST_PS_1_1,
                                mc, video::EMT_SOLID, 0, EGSL_DEFAULT);
    s32 chunkLightTransparentMaterialType = driver->getGPUProgrammingServices()->addHighLevelShaderMaterialFromFiles(
                                "Shaders/light.vert", "vertexMain", video::EVST_VS_1_1,
                                "Shaders/light.frag", "pixelMain", video::EPST_PS_1_1,
                                mc, video::EMT_TRANSPARENT_ALPHA_CHANNEL, 0, EGSL_DEFAULT);
 
    ..........................
 
    MyFactoryChunkMeshSceneNode* mfcmsn = new MyFactoryChunkMeshSceneNode(device, isve); //Creating factory of nodes
    ..........................
    mfcmsn->setNumberOfMeshesSceneNodeForChunk(3);
    mfcmsn->setHardwareMappingHint(0, EHM_STATIC, EBT_VERTEX_AND_INDEX); //First parameter is number mesh
    mfcmsn->setMaterialType(0, (E_MATERIAL_TYPE)chunkLightMaterialType);
    mfcmsn->setHardwareMappingHint(1, EHM_STATIC, EBT_VERTEX_AND_INDEX); //Glass mesh
    mfcmsn->setMaterialType(1, (E_MATERIAL_TYPE)chunkLightTransparentMaterialType);
    mfcmsn->setHardwareMappingHint(2, EHM_STATIC, EBT_VERTEX_AND_INDEX); //Water mesh
    mfcmsn->setMaterialType(2, (E_MATERIAL_TYPE)chunkLightTransparentMaterialType);
    ...........................
    isve->getFactoryChunkMeshSceneNode()->setMaterialFlag(2, id, EMF_LIGHTING, false); //id - world identificator, 2 - mesh for water, isve - my voxel engine
    isve->getFactoryChunkMeshSceneNode()->setMaterialFlag(2, id, EMF_BLEND_OPERATION, true);
    isve->getFactoryChunkMeshSceneNode()->setMaterialFlag(2, id, EMF_ZWRITE_ENABLE, false);
    isve->getFactoryChunkMeshSceneNode()->setMaterialFlag(2, id, EMF_BACK_FACE_CULLING, false);
    isve->getFactoryChunkMeshSceneNode()->setMaterialFlag(2, id, EMF_COLOR_MATERIAL, false);
    .........................
    isve->stop(); //Stopping engine, waiting all thread
    delete isve;
    device->drop();
    return 0;
}
 

Code: Select all

uniform float s_StarLightIntensity;
 
varying vec3 s_PixelColor;
varying float s_StarLight;
 
void main(void)
{
    gl_Position = ftransform();
    gl_TexCoord[0] = gl_MultiTexCoord0;
    s_PixelColor = gl_Color.xyz;
    s_StarLight = gl_Color[3] * s_StarLightIntensity;
}
 

Code: Select all

uniform sampler2D s_TextureLayerID;
 
uniform vec4 s_StarLightColor;
 
varying vec3 s_PixelColor;
varying float s_StarLight;
 
vec4 colorDown(in vec4 color)
{
    float dist = 0.0;
    for(int i = 0; i < 3; i++)
        if(color[i] > 1.0 && color[i] - 1.0 > dist) dist = color[i] - 1.0;
    for(int i = 0; i < 3; i++) color[i] = color[i] - dist;
    return color;
}
 
vec4 getLight(in vec4 color, in float starlight)
{
    return colorDown(color + vec4(s_StarLightColor.xyz, 0.0) * starlight);
}
 
void main()
{
    float starlight = s_StarLight;
    vec4 color = texture2D(s_TextureLayerID, vec2(gl_TexCoord[0]));
    gl_FragColor = vec4((color * getLight(vec4(s_PixelColor, 1.0), starlight)).xyz, color.a);
}
 

Code: Select all

 
gl_FragColor = vec4((color * getLight(vec4(s_PixelColor, 1.0), starlight)).xyz, 0.7);