[SOLVED] rendermonkey shader causes access violation

[thespecial1]

Hi Guys

I have got quite a few of rendermonkeys samples working in irrlicht, this one is using the same 3d texture NoiseVolume that was required by the glitter shader (so I am sure that the textures are loaded correctly). However, I get no issue adding the shader below, but smgr->endScene crashes after the material is used on any mesh:

callback function

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class MyShaderCallBack : public video::IShaderConstantSetCallBack 
{
public: 
   IrrlichtDevice *device;
   virtual void OnSetConstants(video::IMaterialRendererServices* services,s32 userData) 
   { 
	f32 flamability = 0.34;
	f32 pressure = 0.60;
	f32 powerBoost = 0.16;
	f32 intensity = 1.0;
	f32 speed = 0.15;
	f32 noisiness = 0.5;
	f32 time =  device->getTimer()->getTime()/200.0;
	f32 explositivity = 0.449550;
	f32 Noise = 0;
	f32 Flame = 1;

	services->setPixelShaderConstant("flamability", reinterpret_cast<f32*>(&flamability), 1); 
	services->setPixelShaderConstant("pressure", reinterpret_cast<f32*>(&pressure), 1); 
	services->setPixelShaderConstant("powerBoost", reinterpret_cast<f32*>(&powerBoost), 1); 
	services->setPixelShaderConstant("intensity",reinterpret_cast<f32*>(&intensity),1);
	services->setPixelShaderConstant("speed", reinterpret_cast<f32*>(&speed), 1); 
	services->setPixelShaderConstant("noisiness", reinterpret_cast<f32*>(&noisiness), 1); 
	services->setPixelShaderConstant("time_0_X", reinterpret_cast<f32*>(&time), 1); 
	services->setPixelShaderConstant("explositivity",reinterpret_cast<f32*>(&explositivity),1);
	services->setPixelShaderConstant("Noise",reinterpret_cast<f32*>(&Noise),1);
	services->setPixelShaderConstant("Flame",reinterpret_cast<f32*>(&Flame),1);

   } 

}; 

vert shader

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varying vec2 vTexCoord;

void main(void) {
	gl_Position = ftransform();
	vTexCoord = vec2(sign(gl_Vertex));
}

frag shader

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uniform float flamability;
uniform float pressure;
uniform float powerBoost;
uniform float intensity;
uniform float speed;
uniform float noisiness;
uniform float time;
uniform float explosivity;

uniform sampler2D Flame;
uniform sampler3D Noise;

varying vec2 vTexCoord;

void main(void)
{
	float t = fract(time * speed);
	t = pow(t, explosivity);
	float size = intensity * 3.75 * t * (t * (t - 2.0) + 1.0);
	float dist = length(vTexCoord) / (0.1 + size);
	float n = texture3D(Noise, vec3(noisiness * vTexCoord, flamability * time - pressure * dist)).r;
	vec4 flame = texture2D(Flame, vec2(size * powerBoost + size * (2.0 * n - dist), 0.0));
	gl_FragColor = flame;
}

to make sure that the shader worked properly I copied irrSpintz explosion shader from his project but get the same crash on meshes and a straight cubeSceneNode, not sure the best way to debug access violation in smgr, anyone see something wrong with the callback mayb?

thanks
Rob

[stefbuet]

So, did you manage to put the 3D texture on your mesh?

[thespecial1]

certainly did mate, worked nicely on glitter ;0)
used this one http://irrlicht.sourceforge.net/phpBB2/ ... hlight=dds have also got a basic ogre style material loader working, needs more work thou, zip in ur mail including the compiled dds loader lib ;0)




**** solved
this appears to only be a problem on my ATI HD3000 in my laptop, the nvidia at work and my nvidia linux desktop compile the shader fine thou output is screwed in a funny matter so i presume when i learn to convert it properly for irrlicht it wont kill itself anymore.

i am learning GLSL from the orange book but i am trying to get some of the rendermonkey ones working as it seems a shame to re write the wheel completly.