Irrlicht Engine

Posted: **Thu Jan 21, 2016 9:11 pm**

devsh wrote:One of the problems with irrlicht is that there is no MRT object, so an FBO is made for each render target texture instead, and that is mutated to attach other textures as outputs 1 and onwards. This is really slow in some drivers according to Valve and Intel

In trunk we added IRenderTarget object, so this problem is solved.

Posted: **Thu Jan 21, 2016 9:27 pm**

nice

did you see my document about my Buffer-Centric irrlicht fork?

Posted: **Fri Jan 22, 2016 12:10 am**

Negative sir the problem is only solved if you use the trunk.

Posted: **Fri Jan 22, 2016 1:05 pm**

01-22 13:52:56:269 : [OPENGL] [MEDIUM][OPENGL DEPRECATED] API_ID_LINE_WIDTH deprecated behavior warning has been generated. Wide lines have been deprecated. glLineWidth set to 1.600000. glLineWidth with width greater than 1.0 will generate GL_INVALID_VALUE error in future versions
01-22 13:52:56:323 : [OPENGL] [ LOW ][OPENGL PERFORMANCE] API_ID_REDUNDANT_FBO performance warning has been generated. Redundant state change in glBindFramebuffer API call, FBO 0, "", already bound.
01-22 13:52:56:323 : [OPENGL] [MEDIUM][OPENGL DEPRECATED] API_ID_LINE_WIDTH deprecated behavior warning has been generated. Wide lines have been deprecated. glLineWidth set to 1.600000. glLineWidth with width greater than 1.0 will generate GL_INVALID_VALUE error in future versions
01-22 13:52:56:353 : [OPENGL] [ LOW ][OPENGL PERFORMANCE] API_ID_REDUNDANT_FBO performance warning has been generated. Redundant state change in glBindFramebuffer API call, FBO 0, "", already bound.
01-22 13:52:56:354 : [OPENGL] [MEDIUM][OPENGL DEPRECATED] API_ID_LINE_WIDTH deprecated behavior warning has been generated. Wide lines have been deprecated. glLineWidth set to 1.600000. glLineWidth with width greater than 1.0 will generate GL_INVALID_VALUE error in future versions
01-22 13:52:56:394 : [OPENGL] [ LOW ][OPENGL PERFORMANCE] API_ID_REDUNDANT_FBO performance warning has been generated. Redundant state change in glBindFramebuffer API call, FBO 0, "", already bound.
01-22 13:52:56:394 : [OPENGL] [MEDIUM][OPENGL DEPRECATED] API_ID_LINE_WIDTH deprecated behavior warning has been generated. Wide lines have been deprecated. glLineWidth set to 1.600000. glLineWidth with width greater than 1.0 will generate GL_INVALID_VALUE error in future versions
01-22 13:52:57:449 : [OPENGL] [ LOW ][OPENGL PERFORMANCE] API_ID_REDUNDANT_FBO performance warning has been generated. Redundant state change in glBindFramebuffer API call, FBO 0, "", already bound.
01-22 13:52:57:449 : [OPENGL] [MEDIUM][OPENGL DEPRECATED] API_ID_LINE_WIDTH deprecated behavior warning has been generated. Wide lines have been deprecated. glLineWidth set to 1.600000. glLineWidth with width greater than 1.0 will generate GL_INVALID_VALUE error in future versions
01-22 13:52:57:485 : [OPENGL] [ LOW ][OPENGL PERFORMANCE] API_ID_REDUNDANT_FBO performance warning has been generated. Redundant state change in glBindFramebuffer API call, FBO 0, "", already bound.
01-22 13:52:57:485 : [OPENGL] [MEDIUM][OPENGL DEPRECATED] API_ID_LINE_WIDTH deprecated behavior warning has been generated. Wide lines have been deprecated. glLineWidth set to 1.600000. glLineWidth with width greater than 1.0 will generate GL_INVALID_VALUE error in future versions
01-22 13:52:57:521 : [OPENGL] [ LOW ][OPENGL PERFORMANCE] API_ID_REDUNDANT_FBO performance warning has been generated. Redundant state change in glBindFramebuffer API call, FBO 0, "", already bound.
01-22 13:52:57:521 : [OPENGL] [MEDIUM][OPENGL DEPRECATED] API_ID_LINE_WIDTH deprecated behavior warning has been generated. Wide lines have been deprecated. glLineWidth set to 1.600000. glLineWidth with width greater than 1.0 will generate GL_INVALID_VALUE error in future versions
01-22 13:52:57:575 : [OPENGL] [ LOW ][OPENGL PERFORMANCE] API_ID_REDUNDANT_FBO performance warning has been generated. Redundant state change in glBindFramebuffer API call, FBO 0, "", already bound.
01-22 13:52:57:575 : [OPENGL] [MEDIUM][OPENGL DEPRECATED] API_ID_LINE_WIDTH deprecated behavior warning has been generated. Wide lines have been deprecated. glLineWidth set to 1.600000. glLineWidth with width greater than 1.0 will generate GL_INVALID_VALUE error in future versions
01-22 13:52:57:608 : [OPENGL] [ LOW ][OPENGL PERFORMANCE] API_ID_REDUNDANT_FBO performance warning has been generated. Redundant state change in glBindFramebuffer API call, FBO 0, "", already bound.
01-22 13:52:57:608 : [OPENGL] [MEDIUM][OPENGL DEPRECATED] API_ID_LINE_WIDTH deprecated behavior warning has been generated. Wide lines have been deprecated. glLineWidth set to 1.600000. glLineWidth with width greater than 1.0 will generate GL_INVALID_VALUE error in future versions
01-22 13:52:57:666 : [OPENGL] [ LOW ][OPENGL PERFORMANCE] API_ID_REDUNDANT_FBO performance warning has been generated. Redundant state change in glBindFramebuffer API call, FBO 0, "", already bound.
01-22 13:52:57:666 : [OPENGL] [MEDIUM][OPENGL DEPRECATED] API_ID_LINE_WIDTH deprecated behavior warning has been generated. Wide lines have been deprecated. glLineWidth set to 1.600000. glLineWidth with width greater than 1.0 will generate GL_INVALID_VALUE error in future versions
01-22 13:52:57:701 : [OPENGL] [ LOW ][OPENGL PERFORMANCE] API_ID_REDUNDANT_FBO performance warning has been generated. Redundant state change in glBindFramebuffer API call, FBO 0, "", already bound.
01-22 13:52:57:702 : [OPENGL] [MEDIUM][OPENGL DEPRECATED] API_ID_LINE_WIDTH deprecated behavior warning has been generated. Wide lines have been deprecated. glLineWidth set to 1.600000. glLineWidth with width greater than 1.0 will generate GL_INVALID_VALUE error in future versions
01-22 13:52:57:738 : [OPENGL] [ LOW ][OPENGL PERFORMANCE] API_ID_REDUNDANT_FBO performance warning has been generated. Redundant state change in glBindFramebuffer API call, FBO 0, "", already bound.
01-22 13:52:57:738 : [OPENGL] [MEDIUM][OPENGL DEPRECATED] API_ID_LINE_WIDTH deprecated behavior warning has been generated. Wide lines have been deprecated. glLineWidth set to 1.600000. glLineWidth with width greater than 1.0 will generate GL_INVALID_VALUE error in future versions
01-22 13:52:57:790 : [OPENGL] [ LOW ][OPENGL PERFORMANCE] API_ID_REDUNDANT_FBO performance warning has been generated. Redundant state change in glBindFramebuffer API call, FBO 0, "", already bound.

Getting these beauties from KHR_debug and Intel Driver

Posted: **Fri Jan 22, 2016 6:59 pm**

The_Glitch wrote:Negative sir the problem is only solved if you use the trunk.

Trunk -> current state of Irrlicht development, so it's solved.

@devsh

devsh wrote:did you see my document about my Buffer-Centric irrlicht fork?

I'm not sure, but probably not. Is this log from trunk? In trunk we check if the new FBO is different than the last FBO:

Code: Select all

if (FrameBufferID != frameBufferID)
{
    Driver->irrGlBindFramebuffer(GL_FRAMEBUFFER, frameBufferID);
    FrameBufferID = frameBufferID;
}

Posted: **Fri Jan 22, 2016 9:24 pm**

Doing a fork and rewrite of most IMesh+IMeshBuffer related things

https://docs.google.com/document/d/1BSZ ... kSgU4/edit

This is my amended architecture

Posted: **Mon Feb 15, 2016 10:52 pm**

I hope you dont call glDrawBuffer(s) on every setRenderTarget call

Posted: **Wed Feb 17, 2016 9:16 pm**

The is no a cache system for those calls yet, but this task stay on my TODO list and will be added before v1.9 release, however at now other tasks has higher priorities.

Posted: **Thu Feb 18, 2016 3:43 pm**

I use no-cache, just DSA

Irrlicht Engine

Render to Texture performance

Re: Render to Texture performance

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Re: Render to Texture performance

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Re: Render to Texture performance