Irrlicht Engine

Greetings, thanks to some great people here I've managed to implement relief mapping using shader code from the Typhoon Labs shader designer.

Now with only changin the code for getting the binormal and tangent
eyeSpaceTangent = normalize(gl_NormalMatrix * gl_MultiTexCoord1.xyz);
eyeSpaceBinormal ...

how do I pass a float variable to the setText function?

irr::gui::IGUIStaticText myText = guienv->addStaticText(L"", ...);
//....
myText->setText(irr::core::stringw(myFloatVariable).c_str());

Thank you very much
irr::gui::[b]IGUIStaticText*[/b] myText = gui->addStaticText(L"",core::rect<s32 ...

Greetings , whats the easiest way to show a changing variable on screen ?, I have a global variable which is changable during the program run time.
I simply want to have a display of the variables current value in the window.

I looked at the tutorial 9 which had something similar
gui->addEditBox ...

Thank you, I made it like this
declare a global variable for the parameter
pass that variable as a uniform to the shader

Make an event receiver in which key presses modify the global variable.
Voila

Is it possible, I was planing to combine the slidebar from the tutorial no.5 with a shader. So that when that the user moves the slidebar the parameters of the shader change.

Can this be done?

Thank you very much, If you are ever in croatia (or I in spain) you have a drink on me

OMG That is done :wink:

The relief mapping, is somewhat slow (or too slow).
The alternative that looks like "something", is the Parallax occlusion mapping but it is another thing.

Your code is an example ...

Thank you very much, If you are ever in croatia (or I in spain) you have a drink on me :)

But I was trying to implement relief mapping, not parallax mapping :)
The fragment shader is long :)
uniform vec4 fvAmbient;
uniform vec4 fvSpecular;
uniform vec4 fvDiffuse;
uniform float fSpecularPower ...

Remember that Irrlicht stores the information on tangents and binormal of differently type.

ONLY OPENGL

for Tangent:
vec3 t = normalize(gl_NormalMatrix * gl_MultiTexCoord1.xyz);
for Binormal:
vec3 b = normalize(gl_NormalMatrix * gl_MultiTexCoord2.xyz);

Also, remember to convert the mesh to ...

sampler2D means texture (don't know if you can use it for other things but I think you can't), and services->setPixelShaderConstant("baseMap", (float*)(&baseMap), 1); doesn't set a texture, it sets just one float (4 bytes) on that texture - entry.
Check out the link as Bate seems to have done the ...

Not intending to hijack the thread, but how exactly does the base material for a shader work? Doesn't the shader override the base material?
I don't think it does in a complete sense, for example try putting a transparent material type as a base, you will get a transparent effect on your texture ...

Greetings, I have a shader in which it passes a texture in 1, and the normals and heightmap in the second picture.
Thanks to some great people here i know how to pass textures to the shader
int baseMap=0;
services->setPixelShaderConstant("baseMap", (float*)(&baseMap), 1);
int reliefMap=1;
services ...

It may be similar to the problem i had recently, I get shader linking errors on my new pc, but on my laptop with an old radeon the errors are not there and it runs. In my case the reason was an old opengl texture function, so it may be a driver issue with you as well.

In the example you take a mesh without tangents and use the mesh manipulator to create a duplicate mesh with tangents, but notice how in the tutorial itself, CD3D9ParallaxMapRenderer.cpp, and COpenGLParallaxMapRenderer.cpp, there's nothing that sets the tangents in a shader callback or anything ...

Tangents, normals, and the like should be passed in automatically since that data is coming from the vertices themselves. To set other things, you use a class derived from IShaderConstantSetCallBack and set the data with IMaterialRendererServices functions. See the shader example for details.
I ...

Thank you in you replies :)

now going through the shader code there are a few more things these particular shaders need.

uniform vec4 Tangent;
uniform vec4 Normal;
uniform vec4 BiNormal;

uniform vec4 Eye; //eye coord
varying vec3 EyeDir; // eye vector direction

I know how to get these in opengl ...