Irrlicht Engine

Thanks. I read thoroughly all materials types documented in EMaterialTypes.h file since the doc in the engine itself is more actual than that one which the website says. I really didn't find any suitable type that would just combine two textures (what is very wonderful as other materials can combine...

I have a mesh scene node (mirror) with two materials. The second one contains two texture layers. In the first layer I add a render target texture (created using IVideoDriver::addRenderTargetTexture) in which the camera renders from the position of the mirror node and from that direction where the m...

This will be probably a bit offtopic, but I am interested in knowing reasons of disintegrating of the Irrlicht development team. The single active developer and the forum member so far is CuteAlien. The lastest feature release (1.8.0) is more than ten years old. The lastest bugfix release is also al...

The red light amount is the same as the green one in my scene. The actual problem was the red light has the green and blue components null, so in the result of the blending the light color with the scene color, the total color gets semitransparent with the red tint. I could fix that by calculating t...

I've come up with how to solve this issue finally, only partially, because now although the lamps look like opaque, but their rays became very faint. I caulculate the alpha as a ratio of the current fragment's luminance and the original lamp color luminance: float luminance = dot(color*255.0, vec3(0...

Do you mean so? Always have alpha = 1.0 independing on the mixed alpha?
In any case that doesn't change anything.

I try to combine in the shader which renders the screen quad the total rays texture with the base texture. The first one contains all simple rendered cube light sources emitting godrays (algorithm based on this implementation: https://lokeshsharma97.wordpress.com/2017/08/04/god-rays-opengl/ the only...

Thanks! Setting EMT_TRANSPARENT_ALPHA_CHANNEL for the base shader material is the only thing that solved the problem.

Sorry for very frequent asking here, but it really doesn't work for an obscure reason although it really should do. I bound an own shader to my material which belongs to a mesh scene node and enabled the blend operation EBO_ADD since this material is intended to be transparent (that shader calculate...

Now works too to my wonder. The single reason which I can find is I initialized core::array wrong (when I added ITextures to there, I used direct [] operator, now I added it by push_back()), because actually my current code and the non-working code before are absolutely identical except that thing. ...

Hmm, the MRT feature doesn't work to me although queryFeature(video::EVDF_MULTIPLE_RENDER_TARGETS) reports true. I set core::array with two RT textures, both ones are color format A16B16G16R16F in IRenderTarget::setTexture() without the third parameter and then in the end of the fragment shader I as...

Hmm, I thought now about multiple render targets. What if I have two textures (color and its depth) and I assign two outputs in gl_FragData, one for color, another one for depth? Will depth testing be implemented automatically also for depth texture? As I have two passes and in each of them I send t...

Thanks for reply. I've just added an additional render pass (render to my own depth texture necessary objects and then pass it to the end shader to sample from that).

I have a problem with sending and sampling a depth texture in GLSL fragment shader. I generate it in D16 color format, set it in the render target as the second parameter, then render and after send it in the fragment shader as sampler2D: video::ITexture* base_t = vdrv->addRenderTargetTexture(core::...

Thanks. That has actually fixed the problem. Like addTextureCubemap() can not accept render target textures, only ordinary ones or I converted to video::IImage's incorrectly. I took the example of the convertation from here: viewtopic.php?f=9&t=22268