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Compute_tube

Hi,Today topic is about compute geometry. In this example i am generating a tube from a circle in a compute shader.I notice that rebuilding the primivite directly instead to sample them is a way better approce.This does not scale properly for complex geometry, since you can not code a 3D object but you can sample it :-)Here the code that is actually drawing the tube ://Sample a texture with 1 row and the width of the shadervec4 circle = texelFetch(sTD2DInputs[0], ivec2(gl_GlobalInvocationID.x,0), 0);// here we loop 40 times so write the 40 line...

Unwrapped Geometry_pt3

Hi,here we are with the last part of our journey about unwrapped geometry.Here we deal with sampled geometry.This technique allow to work with complex geometry with out to relay to UV as sampling point in the vertex shader.There are many price to pay for it:1) we need to convert Sop-Chop-Top and this can not be done at runTime2) dealing with normals recalculation is pritty complex3) to have smooth normals you need to double the deformation pipeLine in TOP and sometime tweak it to make things look OK(isshhhh)!The attached file is a preview of wh...

Shadows

Hi,I share this link:https://youtu.be/qiJhB0fOY6I?si=byW0Nm93TP7X2mzmIn here you can find the explaination on how shadows works in TD, and why are they so bad to see :-).There are work around and the Teacher, Mr Ken Joy, shows them in the video.I would like to study a bit shadow volume. I think we could do something with the depth peel buffer. That yeah in a complex scene would not be so efficient for realtime purposes.Here another link ,from Mr Cem Yuksel, that explain in depth (LOL) how the whole concept about shadow mapping works.https://you...

Elastic Tubes

Hi, I am working on the last part of unwrapped Geo. Must be a bomb!! Here a filed of elastic tubes. And the surprise are not finished yet!!The Video shows a bit more of 1milion vertices that i am dispalcing in TOP, with an affector.Next stel will be tube trainling the tubes so have a bit of momentum when the affector “collide” with the geometry. Stay tuned,Peace.Simo

List of links where to learn computer graphics

Hi,Here a list of mostly youtube pages where to learn a bit more what happen when we render an image.This the best course i found until now, absolutely 0 code involved:https://youtube.com/@cem_yuksel?si=fBXGG2ysN6IHpYHjThis guys is a good teacher. I got a lot of isparation from the course. Next one is the most precise and technical,they use gns composer a visual scripting platform that runs on the web. You can export each project you do to a stand alone web application or to a c++ / java project… yes is insane :https://youtube.com/@gsn-compos...

Realtime Anemone

This will be the last part of the unwrapped geometry series. Here we will work with complex geometry and conversions.Tutorial will be out soon!

Unwraped Geometry_pt2

Hi, here the link for the second part of the tutorial about unwraped geometry. In here we will implement a custom PBR material and affectors, so to manipulate the geometry in a more define and district way!! Here the link:https://youtu.be/sTUFpPAYybQ?si=LY0ZmIE0oYFB0Lsj