Texture painting technique has got a limitation due to the material reaction to light. The block on the right bottom corner has been texture painted. A texture painted material hasn’t got a normal map.
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To get some roughness I can connect the base texture color channel to the roughness channel
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we need a color ramp to improve things
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to check the effect of a node I can mute/unmute with M to see the effects of it
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If we introduce more black we make the stone more shini
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Control + shift_ left click shows what the node is doing
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We need to flip the colors
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we can check the map with control + shift+ left click
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We now want to add some bumps to the rock
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the result is very noisy
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We need to reduce the strngth
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We can add a color ramp before the Bump
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Set the steength to 1 in this exercise.
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